exam
Maths Puzzle
Numerical Ability
1) x^2-13x+30=0
2) x^-0.7x-0.44=0
I never really understood how to solve qudratic equations which are equal to zero.
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exam Other Question
SOlve:
x 5
---- +1 = ----
x-5 x-5
This problem has no solution correct? Thank you for your help :-)
Cesium 13 is a radioactive element with a half life of 30 years. Predict how much of a 60mg sample of cesium137 would remain after 210 years. I am trying to figure out the formula to solve this Thanks